code: def test_no_param_schedulers(self):
      task = self._build_task(num_epochs=3, skip_param_schedulers=True)
  
      # there should be no param schedulers
      self.assertEqual(task.optimizer_schedulers, {})
  
      # we should still be able to train the task
      trainer = LocalTrainer()
      trainer.train(task)
  
imports: import unittest
  from unittest.mock import Mock
  from classy_vision.dataset import build_dataset
  from classy_vision.hooks import ClassyHook
  from classy_vision.losses import build_loss
  from classy_vision.models import build_model
  from classy_vision.optim import build_optimizer, build_optimizer_schedulers
  from classy_vision.optim.param_scheduler import ClassyParamScheduler, register_param_scheduler, UpdateInterval
  from classy_vision.tasks import ClassificationTask, ClassyTask
  from classy_vision.trainer import LocalTrainer
label_desc: Use image node_id 6 for calling the TestParamSchedulerIntegration obj's underlying member method code with example usage: obj.test_no_param_schedulers() without return types